Oligoclase and Rhodochrosite Physical Properties

Oligoclase

Rhodochrosite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.62-2.673.0-3.3

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

Uneven, Conchoidal, Conchoidal to uneven, Brittle

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

On {10 1 1} perfect; parting on {10 1 2}

1.7 Mohs Hardness

6-6.53.5-4

2 10

1.8 Chemical Composition

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

MnCO₃

Oligoclase and Rhodochrosite Chemical Formula

While comparing Oligoclase and Rhodochrosite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Oligoclase and Rhodochrosite chemical formula.

Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Rhodochrosite- MnCO₃

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Oligoclase and Rhodochrosite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Rhodochrosite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Rhodochrosite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 3.0-3.3 whereas that of Rhodochrosite is 3.0-3.3.